Video

Hallgatói mérés szélcsatornában és CFD szimulációval

150 mm turntable with stepper drive

Miskolc átszellőzésének vizsgálata GPU alapú nagyörvény szimulációval BME Áramlástan Tanszék www.ara.bme.hu Assessment of the Ventilation of Miskolc Using GPU-Based Large Eddy Simulation BME Department of Fluid Mechanics www.ara.bme.hu/en

This video was shot at the Budapest University of technology and Economics, in the Theodore von Kármán Wind Tunnel Laboratory. Students of the Department of Fluid Mechanics tested several simple building shapes in wind tunnel to show the flow features around them. Please note that to achieve better visibility, the visualization was performed in a slow laminar flow, while buildings immersed in t...

Sand erosion test of a simplified urban square

Theodore von Kármán Wind Tunnel Lab performed the wind tunnel tests of the planned UEFA Category 4 Football Stadium to be built in Debrecen, Hungary. Wind loading was determined on the roof structure using multiple pressure measurements on the 1:150 scale wind tunnel model. Wind comfort at the seats and ventilation of the grass at the football field was another important issue. These were inves...

Installation of the probe traversing system in the 2.6m wind tunnel of the Theodore von Kármán Wind Tunnel Lab.

Kollégáink, Balogh Miklós meteorológus és Balczó Márton gépészmérnök beszélnek a Duna TV sorozatában a szélcsatorna és az áramlástani numerikus szimuláció alkalmazásáról a klímaváltozás kapcsán. A teljes műsor megtekinthető: jovokerek.hu/klima/video-25

The 3D - probe traversing system is tested now outside the wind tunnel, before it is mounted in its final location in the wind tunnel's test section. The both stepper motors can move the axes X and Y smoothly and with high precision. Joystick control will enable easy positioning of measurement probes like hot-wire sensors, LDV optics, total pressure and concentration tubes and rakes.

Here we show the two horizontal axes of the wind tunnel traversing system. Its range is 5 x 3.5 m. In final position it will be mounted above the wind tunnel test section. Adding the vertical axis, it will allow accurate 3D probe positioning through the whole test section volume.

The 2-stage telescopic vertical axis of our wind tunnel is tested without its streamlined cover on a preliminary mount, outside of the wind tunnel.

Flow visualization with oil fog and laser sheet in Hamburg University's WOTAN wind tunnel shows the eddy structures in the urban boundary layer above the simplified wind tunnel model of a hypothetical European city called "Michel-Stadt". The presence of larger and smaller vortices has a large influence on the transport of heat, moisture or pollutants in urban environment. The proper modelling o...

During the wind tunnel measurement of a tensile fabric structure (on the right ) flow was analyzed at several wind directions in a low-speed oil fog visualization. Wind is coming from the left. The large buildings on the left channelize the flow causing larger pressure fluctuations on the investigated structure. The measurement was performed in the large Goettingen-type wind tunnel of the Theod...

Wind load of the planned Raiffeisen Towers in Budapest is measured in wind tunnel. About 200 pressure measurement points are spread along the building's acrylic surfaces. The measurements system consists of: - pressure tubing - mechanical pressure multiplexers (Scanivalves) - pressure transducers - data acquisition system (PC runinng NI Labview). The measurements were performed in the Theodore ...

Wind tunnel testing of tall buildings in Budapest (Pt 2): flow visualization

Wind tunnel testing of tall buildings in Budapest (Pt 1): the wind tunnel model

Flow visualization in wind tunnel: wake of an industrial building

Flow visualization in wind tunnel: separation and vortices in front of an industrial building

Control of stepper motors using LabVIEW and a joystick

Wind tunnel test of a large industrial building

Wind tunnel traversing system - stepper motor system in testing

MTV regionális híradó, 2007. május 24. 21:22

Terrain model for wind tunnel testing

Delta, 2007.03.03

RTLKlub 2007.03.07. Híradó

MTV1 2007.03.07, Híradó